GM spokesperson Bob Wheeler says plans call for the plant to return to 24-hour-a-day production, for the first time in over a decade.

“When that Colorado goes on board the hiring and the transfers of those people would basically incur a third shift so you’ll have Wentzville falling in line with GM’s optimum business model of three shifts,” Wheeler tells KMOX News.

Many of those jobs are moving to Wentzville from Shreveport Louisiana, where the Colorado was being assembled, but other open job positions will be filled “off the street’.

Officials broke ground Monday on the $380 million 500,000 square foot expansion, but Wheeler says for competitive reasons they’re not revealing when the new addition will be completed.